

A104231


Triangle read by rows, based on the morphism f: 1>2, 2>3, 3>{3,3,5,4}, 4>5, 5>6, 6>{6,6,2,1}. First row is 1. If current row is a,b,c,..., then the next row is a,b,c,...,f(a),f(b),f(c),...


0



1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 3, 3, 5, 4, 1, 2, 2, 3, 2, 3, 3, 3, 3, 5, 4, 2, 3, 3, 3, 3, 5, 4, 3, 3, 3, 5, 4, 3, 3, 5, 4, 3, 3, 5, 4, 3, 3, 5, 4, 6, 5, 1, 2, 2, 3, 2, 3, 3, 3, 3, 5, 4, 2, 3, 3, 3, 3, 5, 4, 3, 3, 3, 5, 4, 3, 3, 5, 4, 3, 3, 5, 4, 3, 3, 5, 4, 6, 5, 2, 3, 3, 3, 3, 5, 4, 3, 3, 3, 5, 4, 3
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OFFSET

0,3


COMMENTS

This substitution was suggested by looking at output of the symbols of an actual Kenyon border tiling program.


LINKS

Table of n, a(n) for n=0..104.
Richard Kenyon, The Construction of SelfSimilar Tilings


MATHEMATICA

s[n_] := n /. {1 > 2, 2 > 3, 3 > {3, 3, 5, 4}, 4 > 5, 5 > 6, 6 > {6, 6, 2, 1}}; t[a_] := Join[a, Flatten[s /@ a]]; Flatten[ NestList[t, {1}, 5]]


CROSSREFS

Cf. A073058, A103748.
Sequence in context: A072086 A180094 A103748 * A105111 A105112 A105113
Adjacent sequences: A104228 A104229 A104230 * A104232 A104233 A104234


KEYWORD

nonn,tabf


AUTHOR

Roger L. Bagula, Apr 02 2005


STATUS

approved



